forked from AuroraMiddleware/gtk
adacd4f789
* gdk-pixbuf/gdk-pixbuf.sgml: include initialization_versions.sgml,
file-saving.sgml and module_interface.sgml.
* gdk-pixbuf/tmpl/module_interface.sgml: add short description.
* gtk/tmpl/gtkarg.sgml, gtk/tmpl/gtkdata.sgml,
gtk/tmpl/gtkcellrenderertextpixbuf.sgml: removed, since they described
no longer existent stuff and aren't included anymore.
* gdk/tmpl/color_contexts.sgml, gdk/tmpl/input_contexts.sgml,
gdk/tmpl/input_methods.sgml: removed, since they described no longer
existent stuff and aren't included anymore.
87 lines
2.5 KiB
Plaintext
87 lines
2.5 KiB
Plaintext
<!-- ##### SECTION Title ##### -->
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Module Interface
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<!-- ##### SECTION Short_Description ##### -->
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extending &gdk-pixbuf;
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<!-- ##### SECTION Long_Description ##### -->
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<para>
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</para>
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<!-- ##### SECTION See_Also ##### -->
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<para>
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</para>
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<!-- ##### USER_FUNCTION ModuleFillVtableFunc ##### -->
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<para>
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Defines the type of the function used to set the vtable of a
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#GdkPixbufModule when it is loaded.
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</para>
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@module: a #GdkPixbufModule.
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<!-- ##### USER_FUNCTION ModulePreparedNotifyFunc ##### -->
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<para>
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Defines the type of the function that gets called once the initial
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setup of @pixbuf is done.
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</para>
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<para>
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#GdkPixbufLoader uses a function of this type to emit the
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"<link linkend="GdkPixbufLoader-area-prepared">area_prepared</link>"
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signal.
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</para>
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@pixbuf: the #GdkPixbuf that is currently being loaded.
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@anim: if an animation is being loaded, the #GdkPixbufAnimation, else %NULL.
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@user_data: the loader.
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<!-- ##### USER_FUNCTION ModuleUpdatedNotifyFunc ##### -->
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<para>
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Defines the type of the function that gets called every time a region
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of @pixbuf is updated.
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</para>
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<para>
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#GdkPixbufLoader uses a function of this type to emit the
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"<link linkend="GdkPixbufLoader-area-updated">area_updated</link>"
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signal.
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</para>
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@pixbuf: the #GdkPixbuf that is currently being loaded.
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@x: the X origin of the updated area.
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@y: the Y origin of the updated area.
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@width: the width of the updated area.
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@height: the height of the updated area.
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@user_data: the loader.
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<!-- ##### STRUCT GdkPixbufModule ##### -->
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<para>
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A #GdkPixbufModule contains the necessary functions to load and save
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images in a certain file format.
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</para>
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<para>
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A #GdkPixbufModule can be loaded dynamically from a #GModule.
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Each loadable module must contain a #ModuleFillVtableFunc function named
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<funcion>gdk_pixbuf__<replaceable>module_name</replaceable>_fill_vtable</function>.
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It will get called when the module is loaded and must set the function
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pointers of the #GdkPixbufModule.
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</para>
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@module_name: the name of the module, usually the same as the
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usual file extension for images of this type, eg. "xpm", "jpeg" or "png".
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@format_check: checks if the given data is the beginning of a valid image
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in the format supported by the module.
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@module: the loaded #GModule.
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@load: loads an image from a file.
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@load_xpm_data: loads an image from data in memory.
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@begin_load: begins an incremental load.
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@stop_load: stops an incremental load.
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@load_increment: continues an incremental load.
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@load_animation: loads an animation from a file.
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@save: saves a #GdkPixbuf to a file.
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